T
he electric utility industry has gone through dramatic changes in the last few years.  These changes have been both on the market side (e.g. deregulation) and the power generation side (stricter environmental requirements).  This mandates the need to produce electricity at the lowest possible cost.  One cost that continues to escalate is the disposal of fly ash.  The chemical nature of the fly ash determines the marketability of the fly ash.  In many cases there is no market for the fly ash.  

Most new ash disposal ponds now require fabric liners.  The permitting time for new ponds can be several years.  In the interim many power plants are running out of room for ash storage.  The service we provide is moving the ash from point A to point B.  We can provide more storage at point B because we pump at a higher percentage of solids using our 8” submersible pump dredge.  This in turn yields a higher angle of repose at point B.  In some cases we simply redistribute the ash to an end of the pond that is not utilized.  In other cases we move the ash from a temporary basin to a designated final spoil site.  We have worked projects that have fabric liners in the pond we are dredging and in the disposal pond.  We have developed techniques to ensure there is no damage to the liner during the dredging process.

Ten years ago our utility work was less than 5% of our business.  Last year it accounted for over 50% of our work.  We continue to strive to offer a better solution for ash disposal.

 


 

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